Wintergreen (Gaultheria fragrantissima) essential oil has an easily recognized, sweet, mint-like aroma. It is a fantastic oil for massage blends and diffusions. Aura Cacia Wintergreen Essential Oil typically comes from the foothills of Nepal. It grows to about 8 feet in height at high altitudes. It's generally found in mixed forests as an understory shrub. The young tips from which the oil is distilled are harvested annually over several months.